Measuring DPS performance

For one of my WoW data projects, I’ve been putting a bit of thought into how to measure the quality of DPS in a pug. I’ve been doing this for a while – but realized that my measure misses a key component. I want a measure that weights overall damage done, but penalizes for pulling aggro from the tank. (Yup, I left off that last part. Thats what I get for being a tank…) My goal is to examine a few myths / thoughts about the new LFD system.